NCT04484285

Brief Summary

This project will utilize a home-operated stimulator in 1) a healthy young adult population and 2) a healthy older adult population to provide a proof of concept of home-use of transcutaneous vagal nerve stimulation (tVNS). tVNS is believed to modulate cognitive performance.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
10

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Aug 2020

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 21, 2020

Completed
2 days until next milestone

First Posted

Study publicly available on registry

July 23, 2020

Completed
28 days until next milestone

Study Start

First participant enrolled

August 20, 2020

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 6, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 6, 2023

Completed
1.6 years until next milestone

Results Posted

Study results publicly available

April 11, 2025

Completed
Last Updated

April 20, 2025

Status Verified

April 1, 2025

Enrollment Period

3 years

First QC Date

July 21, 2020

Results QC Date

February 3, 2025

Last Update Submit

April 14, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • System Usability Scale

    This is a standard version of a usability scale. Subjects will be given 10 statements regarding the usability of the equipment they used, and they will report how much they agree with each statement on a 1 - 5 scale (1 is strongly disagree and 5 is strongly agree). The score range is 10-50 where 50 demonstrates the highest acceptance of the usability of the device and 10 demonstrates the lowest acceptance of the usability of the device.

    Day 7 reported

Study Arms (2)

Younger Cohort

ACTIVE COMPARATOR

Healthy individuals aged 18 - 55

Device: Transcutaneous Vagal Nerve Stimulation (tVNS)

Older Cohort

ACTIVE COMPARATOR

Healthy individuals aged 56 - 85

Device: Transcutaneous Vagal Nerve Stimulation (tVNS)

Interventions

vagal nerve stimulation

Older CohortYounger Cohort

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participants for one cohort will be adults between the ages of 18-55, consistent with the typical college population
  • Participants for the other cohort will be adults between the ages of 56 - 85. Participants must read and write English.

You may not qualify if:

  • Major medical illnesses including diagnosed severe neurological illnesses (e.g., stroke, seizure history), autoimmune disorders, and severe psychiatric diseases (e.g., schizophrenia) will be excluded. Participants with any history of brain surgery, tumor, intracranial metal implantation, pacemakers or other implanted devices will be excluded.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Florida McKnight Brain Institute

Gainesville, Florida, 32643, United States

Location

Limitations and Caveats

The study enrolled only participant into the older adult group. This participant was unable to use the stimulator. To understand the feasibility of this intervention in this group many more older adult participants would need to be enrolled.

Results Point of Contact

Title
Eric Porges, Associate Profressor
Organization
University of Florida

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 21, 2020

First Posted

July 23, 2020

Study Start

August 20, 2020

Primary Completion

September 6, 2023

Study Completion

September 6, 2023

Last Updated

April 20, 2025

Results First Posted

April 11, 2025

Record last verified: 2025-04

Locations